"For nearly thirty years we've been having this discussion, asking the question: do violent movies, music or video games make people violent? Well according to Brad Bushman and Craig Anderson of Iowa State University, yes. Based on the results of their research they concluded in 2001 that video games and violent media can make people aggressive and violent. Based upon their data and their conclusions, however, it's safe to say that photos of snakes, crispy bacon, or a particularly rigorous game of chess can also make people aggressive and violent." And politicians?

"Still if you disallow carrying guns in public, you are removing a significant cause of murders, right?"

That is incorrect, in states that allow concealed carry there have been no increase in murders and no big shoot outs etc. If someone is going to kill they will do it regardless of whether or not they have a gun, a gun is just another tool. it can be a effective tool, but just a tool. If someone is going to go through all the trouble to get a concealed carry permit it's highly unlikely they are going to go shoot some place up, not the guy who steals a gun from a store etc and has no regard for the law just might.

The bottom line is bad people murder and we need to figure out what is making people bad, not just simply ban the tool. Take away guns and they will start killing with bombs, knives, machetes, ice picks you name it.